microblaze: Add linux.bin.ub target

Currently the linux.bin target creates both linux.bin and linux.bin.ub.
Add linux.bin.ub as separate target to generate linux.bin.ub.
Signed-off-by: NJason Wu <huanyu@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

arch/microblaze/Makefile

@@ -72,7 +72,7 @@ all: linux.bin
 archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
 
-linux.bin linux.bin.gz: vmlinux
+linux.bin linux.bin.gz linux.bin.ub: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 
 simpleImage.%: vmlinux
@@ -81,6 +81,7 @@ simpleImage.%: vmlinux
 define archhelp
   echo '* linux.bin    - Create raw binary'
   echo '  linux.bin.gz - Create compressed raw binary'
+  echo '  linux.bin.ub - Create U-Boot wrapped raw binary'
   echo '  simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
   echo '                   - stripped elf with fdt blob'
   echo '  simpleImage.<dt>.unstrip - full ELF image with fdt blob'

arch/microblaze/boot/Makefile

@@ -2,12 +2,15 @@
 # arch/microblaze/boot/Makefile
 #
 
-targets := linux.bin linux.bin.gz simpleImage.%
+targets := linux.bin linux.bin.gz linux.bin.ub simpleImage.%
 
 OBJCOPYFLAGS := -R .note -R .comment -R .note.gnu.build-id -O binary
 
 $(obj)/linux.bin: vmlinux FORCE
 	$(call if_changed,objcopy)
+	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+
+$(obj)/linux.bin.ub: $(obj)/linux.bin FORCE
 	$(call if_changed,uimage)
 	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
 
@@ -22,8 +25,6 @@ quiet_cmd_strip = STRIP   $@
 	cmd_strip = $(STRIP) -K microblaze_start -K _end -K __log_buf \
 				-K _fdt_start vmlinux -o $@
 
-UIMAGE_IN = $@
-UIMAGE_OUT = $@.ub
 UIMAGE_LOADADDR = $(CONFIG_KERNEL_BASE_ADDR)
 
 $(obj)/simpleImage.%: vmlinux FORCE